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May Weather in Ballymena, United Kingdom

Last updated: August 27, 2025

In May, the average temperature in Ballymena, United Kingdom hovers around 11°C (52°F). You can expect a minimum of 0°C (32°F) and a pleasant maximum of 23°C (74°F). During this month, the region sees an average precipitation of 66 mm (2.6 in) spread across 14 days, contributing to a relatively high average humidity of 82%. Get ready for a mix of weather as you explore this beautiful destination!

May Temperature in Ballymena

In May in Ballymena, the average temperature is 11°C (52°F). The maximum can reach 23°C (74°F), and the minimum can be as low as 0°C (32°F). This climate makes Ballymena an ideal destination for travelers who enjoy mild temperatures and outdoor activities during this time of year.

May Weather in Ballymena: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Ballymena, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ballymena, May typically has an average temperature of 11°C (52°F), with highs reaching up to 23°C (74°F) and lows dropping to around 0°C (32°F).
JanFebMarAprMayJunJulAugSepOctNovDec424244475257605955514643
Data source: Temperature data for Ballymena generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

May Precipitation in Ballymena

In Ballymena in May, the precipitation amount is 66 mm (2.6 in) spread over a duration of 14 days.

May Precipitation Trends in Ballymena

The chart displays monthly precipitation patterns in Ballymena, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In Ballymena, May typically receives around 66 mm (2.6 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec5689784566828611870858582
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Ballymena

In Ballymena in May, humidity is 82%. With an average temperature of 11°C (52°F), this humidity feels like a damp chill that seeps into your bones, making it essential to dress in layers and stay prepared for the moisture-laden air as you explore your surroundings.

May Average Humidity in Ballymena

This chart illustrates the average monthly humidity levels in Ballymena, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in Ballymena is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%86%86%85%82%84%86%86%88%89%90%87%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Ballymena

In Ballymena in May, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Ballymena, you can refer to this Hourly UV Index in Ballymena.

Maximum UV Index Levels in Ballymena for May

The chart shows the monthly maximum UV Index (UVI) for Ballymena in May, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In May, the maximum UV index in Ballymena typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec124568875321
Data source: Ballymena May UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How May Weather in Ballymena Compares to Other Months

Weather in Ballymena varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Ballymena, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Ballymena, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (42°F)56 mm (2.2 inches)87%low
February Weather6°C (42°F)89 mm (3.5 inches)86%low
March Weather6°C (44°F)78 mm (3.1 inches)86%moderate
April Weather8°C (47°F)45 mm (1.8 inches)85%moderate
May Weather11°C (52°F)66 mm (2.6 inches)82%high
June Weather14°C (57°F)82 mm (3.2 inches)84%very high
July Weather15°C (60°F)86 mm (3.4 inches)86%very high
August Weather15°C (59°F)118 mm (4.7 inches)86%high
September Weather13°C (56°F)70 mm (2.8 inches)88%moderate
October Weather10°C (51°F)85 mm (3.3 inches)89%moderate
November Weather8°C (46°F)85 mm (3.3 inches)90%low
December Weather6°C (43°F)82 mm (3.2 inches)86%low

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